Hoisting-machine



(No Model.) i

. B. P. PORTER, J. P. BLOOM &-, R. ASPIN.

HOISTING MACHINE.

No. 275,849. Patented Apr'.17,188

Z 1 H ,'/44, 2 V

TINTTED STATES PATENT Oriana BENJAMIN F. PORTER, OF \VAUKEGAN, AND JOHN P. BLOOM AND ROBERT ASPIN, OF SOUTH CHICAGO, ILLINOIS.

HOISTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 275,849, dated April 1'7, 1883.

Application filed September as, 1582. No model.)

To all whom it may concern.-

Be it known that we, BENJAMIN l PORTER, JOHN P. BLOOM, and ROBERT AsPIN, citizens of the United States, the said PORTER residing at VVaukegan, in the county of Lake and State of Illinois, and the said BLOOM and As- PIN residing at South Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hoisting- Machines, of which the following is aspecification.

Our invention relates to improvementsin the machinery and apparatus for hoisting, unloading, or dischargingiron ore, coal, or other material and freight out of or off from boats, vessels, or cars, and putting the same upon docks or into or upon other cars, or elsewhere, as well as for loading the same into boats, vessels, or cars, also for hoisting ore, coal, or other material for any purpose.

The principal objects of our invention are, first, to obviate the necessity of the machine or apparatus being stationed immediately above or exactly opposite the ore, coal, or other material which is to be hoisted; second, to swing or carry the ore, coal, or other material raised to the place where it is to be dumped, laid, or dropped by the same act as hoisting, the hoisting and carrying or swinging to the place desired beingone continuous motion oract; third, to avoid danger from the ore, coal, or other material dropping or falling back upon the boat or'other place from whence it may be hoisted; and, fourth, to arrive at simplicity of construction and operation of the machine or apparatus.

In the accompanying drawings, Figure l is a perspective view of our machine or apparatus as constructed with especial reference to hoisting or raising iron ore or coal in buckets from boats or vessels to an elevated or upper dock, floor, or platform, and unloading or dumping the said ore or coal into or upon hand or dump cars standing upon tracks laid on such upper docks, floors, or platforms, said hand or dump cars, when loaded, being run back on such tracks to the desired place, and the contents dumped or thrown below upon or in the rear of the main dock or upon a pile; and Figs. 2 and 3, detail views.

A A are two upright post-s erected at or near and at equal distances from the front line of the upper dock or platform, B. These posts are connected at the top by means of a plate or beam, 0, each end being securely framed into the upper ends of the posts. On this upper dock or platfor|n,and between the bottoms of these upright posts, is located a track, D, for running the dump or hand cars, said track being located at right angles with the front line of said upper dock and extending back any required distance.

E E are convergent arms or standards of equal length, the lower ends of which are securely hinged to shoes 12, and the upper-ends 6 of which are brought su'ftioiently near together to rest against the opposite sides of a pulleyblock, a, with a pulley-wheel, t, to which block said upper ends are securely fastened by iron bolts or otherwise,with a band ofiron around on the outside, if necessary. These arms thus hinged and fastened together at the upper end constitute a fender, and we shall designate it as such hereinafter in this description. The height of the posts A should be about three- 7 fourths the length of the fender. The shoes 21 each rests upon a block or plate, I the inner edge of which forms the arc of a circle, as 7 shown at s. The shoes are adapted to be moved, when necessary to adjust the position of the fender, by providing the blocks F each with a curved slot, 1', through which the nutbolt securing the shoe to it passes, and the blocks 1* are placed at equal distances back from the front line of the dock, and are so constructed that it they were continued on the, same curve until they met at each end their inner'edges would form a complete circle, and are so located with reference to' each other that the line drawn from the center of one to the center of the other would pass through the center of said circle. These blocks or plates are constructed so as to be movable upon the dock, being fastened and held in position by v means of bolts q, so that they can be moved 3 at a greater or less distance, as maybe necessary.

To each post A, at the point markedp, is fastened a small rope or chain, 0, the other end of which is fastened to the adjacent arm of the ICD fender at at. These ropes are of the requisite length to allow the fender to be lowered to the apart.

desired distance, and their use is to prevent it I going any lower. When the shoes are moved one must be moved forward or towardthe dock-line, and the other backward or from the said line the same distance, in order that the lower or hinged ends of the arms of the fender shall at all times remain the same distances The shoes, after being moved to the proper position, are securely fastened to the blocks F by means of the screws or bolts l.

G is a tackle or pulley block, which is fastened to the under side of the cross plate or beam 0 at or near its center.

H is the hoisting rope or cable, which extends beyond the portion shown, down through the upper dock or platform, and thence to a drum or windlass, upon which it is wound when the hoisting is being done, and unwound while the bucket is beinglowered to the boat or vessel after being emptied.

Instead of using the ropes 0, the hoistingcable may be fastened at the proper point, so that this rope or chain will answer the same purpose.

I is the bucket in which the ore or coal is hoisted.

K denotes the location of the dump or hand car when in position to be filled.

L is a cable-chain used as a counter-balance to the fender when being hoisted or lowered, and which is continued into a small chain or rope, k, running over the pulleys i and i, and serving to raise and lower the chain L, one end being attached to the upper end of that chain, and the other end to the center of a chain, rope, or rod, h, connecting the two arms of the fender near their upper ends. The weight of the cable-chain is increased at such points, as may be necessary by doubling or trebling it, as indicatedat g, and as may be necessary in order to adjust the weight of this counter-balance to the weight of the fender, so that one shall balance the other at whatever point said fender may be when being hoisted or lowered.

M is a box, tub, or other receptacle for the cable-chain as it falls back during the hoisting process. The precise points where the chain. L should be doubled or trebled, and thus further increased in weight, will depend upon the. amount of weight required at all points to ope'r'ate as intended.

N is a knot or stop in the hoisting rope or cable to prevent it from running through the pulley-block a any farther than desired, the length of the hoisting-rope below the said knot or stop beingsuch that when thefenderis drawn up against the plate or beam U'the bucket will be at the desired height above the dump or hand car to be conveniently dumped or emptied thereinto when a hand-car is used; otherwise at a convenient height for unloading or emptying the bucket.

To adjust this machine for hoisting it is necessary to slide or move the shoes *0, one backward and the other forward, so that the bucket will descend to the point where it is desired that it shall be lowered into the boat.

In the drawings the fender is shown in a half-lowered position, and when in operation would continue to descend until it reached nearly a horizontal position and the bucket rested upon the vessel, when the further lowering would be arrested by the ropes o. The lowering of the fender being thus stopped, the hoisting-rope commences to run down through the pulley t until the bucket is lowered in position. The empty bucket having thus been lowered into the vessel, the hoistingrope is unhitched and hooked to a full bucket, when the hoisting commences by reason of the hoisting-rope being wound upon a drum or windlass and drawn over the pulley-wheel at i, and un til the knot or stop N reaches the pulley t, when the fender commences to rise and turn on the hinges at its lower end without any interruption until the position of the hoisting-rope be tween the pulleys G and t is so near perpendicular that the further hoisting or swinging of the bucket ceases, and the bucket is in position to be emptied. The hoisting-rope is then slackened and the bucket lowered again, as before.

What we claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a hoisting machine or apparatus, of the supporting-frame A O, fender E E, provided with a pulley, u t, shoes '0, hinged one to the lower end of each arm of the fender, blocks or plates F, to which said shoes are adjustably secured, and which in turn are secured to a suitable platform or floor, counter-balanceL,and hoisting-rope,with stop, all constructed substantially as described.

2. The combination, in a hoisting-machine, of the fender E E, with pulley block and wheel a t, and the hinged and movable shoes o 0, all constructed substantially as described.

3. In a hoisting-machine, in combination with a fender, E, supporting-frame A and mechanism for raising and lowering the fender, a self-regulating counter-balance for the fender, consisting of a pendent chain connected at its upper end to the fender, toward the outer end thereof, by means of a chain or rope passing over a suitable intermediate pulley or guide, said pendent chain being of such length as to settle upon the ground or other supporting-base as the fender is raised, substantially as described.

B. F. PORTER.

J. P. BLOOM. ROBERT ASPIN. In presence of-- LoUIs TOBIAS, A. J. KRIMBILL. 

